Homework Answers
Add Answer to:
Name Prelaboratory Assignment 9 (25 pts) 1. A sample of 0.72 g of Al is reacted with 17.0 mL of 2.4 M KOH. Which one...
Name Prelaboratory Assignment 9 (25 pts) 1. A sample of 0.72 g of Al is reacted...
Name Prelaboratory Assignment 9 (25 pts) 1. A sample of 0.72 g of Al is reacted with 17.0 mL of 2.4 M KOH. Which one is the limiting reagent? SHOW WORK! 9 pts 2Al(s) + 2KOH (aq) + 6 H20 (1) ► 2KAl(OH)4 (aq) + 3 H2 (8) 2. If a salt has a solubility of 27.2 g/100 mL water at 25 °C, what volume of water would be needed to dissolve 12.4 g of the salt? 6 pts 3....
Data Sheet: Experiment 9 Name Date Performed 75 pts 1. Mass of Al metal reacted. 0.51...
Data Sheet: Experiment 9 Name Date Performed 75 pts 1. Mass of Al metal reacted. 0.51 09 2. Mass of alum product 6.80 3. Theoretical yield of alum 10 pts 4. Percent yield of alum, KAl(SO4)2 12H2O 10 pts 15 pts Calculations: Volume of water necessary to dissolve the 6.80 g alum crystals: mL. 9 pts 5. Write the net ionic equations for the reactions of the following compounds with KOI 21 pts . AINO.). (a) ові ове с
Exercises: Experiment 9 25 pts Name 1. Write the net ionic equations for the reactions which...
Exercises: Experiment 9 25 pts Name 1. Write the net ionic equations for the reactions which occurred when aqueous KOH was initially added to: 12 pts a. Al(NO3), (aq) b. Fe(NO3)2 (aq) 000000004AAAAAAAAA c. Ni (NO3)2 (aq) AAAAAAUUU 2. How do the results you observed when excess KOH was added illustrate the amphoteric nature of aluminum hydroxide? Explain! 5 pts 3. Refer to your results in the solubility rule experiment (Experiment 5) to predict what would happen if the initial...
CHEM 1033, Sample Exam II (Homework) Chapters 3,4,6 Name: 1. What volume of 0.132 M KOH...
CHEM 1033, Sample Exam II (Homework) Chapters 3,4,6 Name: 1. What volume of 0.132 M KOH solution would react completely with 25.8 ml. of 0.198 M HCl according to the following cquation? HCI+KOH --->KCI+H.O a) 86.4 ml. b) 25.7 ml. c) 38.7 ml d) 17.2 ml. 2. Which one of the following is a strong soluble base? a) Ni(OH): b) Mg(OH): c) RLOH d) ChOH) c) Fe(OH) 3. Which one of the following is a strong acid? a) HF b)...
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water...
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water to prepare a 0.200 M solution. What is the volume of the resulting 0.200 M solution? Or asked another way, to what volume must the original solution be diluted? (3 points) 2) Lithium hydroxide, LiOH, is used in spacecraft to absorb the carbon dioxide exhaled by astronauts. Given 1.3 kg of LiOH, how many kg of CO2 can be absorbed? (10 Pts. The reaction...
Information from the appendix is attached: 5. (20 pts) Consider the following reaction OF2(g) + H2O(g)...
Information from the appendix is attached:
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH (kJ/mole) = -318 kJ/mole (a) Using this information along with data in the appendix of your textbook, calculate AH (OF, (g)) in kJ/mole at 25°C. (b) If 15.0 g of OF2(g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent. 6.(20 pts) Consider two Styrofoam coffee cups....
Name Prelaboratory Assignment 9 (25 pts) 1. A sample of 0.72 g of Al is reacted with 17.0 mL of 2.4 M KOH. Which one is the limiting reagent? SHOW WORK! 9 pts 2Al(s) + 2KOH (aq) + 6 H20 (1) ► 2KAl(OH)4 (aq) + 3 H2 (8) 2. If a salt has a solubility of 27.2 g/100 mL water at 25 °C, what volume of water would be needed to dissolve 12.4 g of the salt? 6 pts 3....
Data Sheet: Experiment 9 Name Date Performed 75 pts 1. Mass of Al metal reacted. 0.51 09 2. Mass of alum product 6.80 3. Theoretical yield of alum 10 pts 4. Percent yield of alum, KAl(SO4)2 12H2O 10 pts 15 pts Calculations: Volume of water necessary to dissolve the 6.80 g alum crystals: mL. 9 pts 5. Write the net ionic equations for the reactions of the following compounds with KOI 21 pts . AINO.). (a) ові ове с
Exercises: Experiment 9 25 pts Name 1. Write the net ionic equations for the reactions which occurred when aqueous KOH was initially added to: 12 pts a. Al(NO3), (aq) b. Fe(NO3)2 (aq) 000000004AAAAAAAAA c. Ni (NO3)2 (aq) AAAAAAUUU 2. How do the results you observed when excess KOH was added illustrate the amphoteric nature of aluminum hydroxide? Explain! 5 pts 3. Refer to your results in the solubility rule experiment (Experiment 5) to predict what would happen if the initial...
CHEM 1033, Sample Exam II (Homework) Chapters 3,4,6 Name: 1. What volume of 0.132 M KOH solution would react completely with 25.8 ml. of 0.198 M HCl according to the following cquation? HCI+KOH --->KCI+H.O a) 86.4 ml. b) 25.7 ml. c) 38.7 ml d) 17.2 ml. 2. Which one of the following is a strong soluble base? a) Ni(OH): b) Mg(OH): c) RLOH d) ChOH) c) Fe(OH) 3. Which one of the following is a strong acid? a) HF b)...
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water to prepare a 0.200 M solution. What is the volume of the resulting 0.200 M solution? Or asked another way, to what volume must the original solution be diluted? (3 points) 2) Lithium hydroxide, LiOH, is used in spacecraft to absorb the carbon dioxide exhaled by astronauts. Given 1.3 kg of LiOH, how many kg of CO2 can be absorbed? (10 Pts. The reaction...
Information from the appendix is attached:
5. (20 pts) Consider the following reaction OF2(g) + H2O(g) ---> 2 HF(g) + O2(g) AH (kJ/mole) = -318 kJ/mole (a) Using this information along with data in the appendix of your textbook, calculate AH (OF, (g)) in kJ/mole at 25°C. (b) If 15.0 g of OF2(g) and 10.0 g of H2Og) react, how much heat, expressed in kJ is released? Hint: First calculate the limiting reagent. 6.(20 pts) Consider two Styrofoam coffee cups....
Most questions answered within 3 hours.
-
Calculate the number of valence electrons for
[Mo(C6H6)(CO)3]
asked 8 minutes ago -
Which of the following are true about the strength of the
association between two variables?
1-...
asked 5 minutes ago -
You are a monopolist and know that your consumers have a linear
demand curve. At what...
asked 3 minutes ago -
Raising a heavy load requires work. Raising it in half the time
requires:
asked 10 minutes ago -
MGT-201: Marketing Management
Before deciding on the structure of the channel marketers must
take several factors...
asked 10 minutes ago -
1. ACLs allow a router to control traffic within a network. The
concept is very similar...
asked 11 minutes ago -
35. When the electron in a hydrogen atom falls from its first
excited energy level to...
asked 13 minutes ago -
A man is dragging a box of mass "m" by using a rope which rests
on...
asked 29 minutes ago -
Liquid octane
(CH3(CH2)6CH3) will
react with gaseous oxygen (O2) to produce gaseous carbon
dioxide (CO2) and...
asked 31 minutes ago -
For the reaction N2(g) +
O2(g) --> 2NO(g), if the initial
concentration of NO was 0.00M...
asked 34 minutes ago -
On a recent quiz, the class mean was 75 with a standard
deviation of 2.2. Calculate...
asked 50 minutes ago -
Discuss the Coefficient of Restitution in an elastic collision
compared to the Coefficient of Restitution in...
asked 54 minutes ago